Here's the post from the FAQ (which stands for Frequently Asked Questions):
Why is a title like hobbit, dwarf, elf, etc. under my name?
This is your rank, based on the number of posts you have. The gold bars are associated with this rank. The only way you can increase your rank is by posting more (but we ask that you NOT post threads just to move up in the ranks). The ranks are as follows:
Movie Extra (1-25 posts)
Rider of Rohan (100-200)
Tolkien Scholar (7000-9000)
Choose your own rank title! (9000+)
I hope this answers your question, and welcome to the boards, you may want to introduce yourself in the Prancing Pony.